Properties of the Number 42099

Forty-Two Thousand Ninety-Nine

Basics

Value: 42098 → 42099 → 42100

Parity: odd

Prime: No

Previous Prime: 42089

Next Prime: 42101

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 14033

Divisors: 1, 3, 14033, 42099

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010010001110011

Octal: 122163

Duodecimal: 20443

Hexadecimal: a473

Square: 1772325801

Square Root: 205.18040842146698

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Triangle T(n,w) read by rows: the number of fixed polyominoes with n cells and width w of the convex hull. A308359

a(n) = (u+1)ⁿ + (-s-1)ⁿ + (t+1)ⁿ + (-1)ⁿ + (-t+1)ⁿ + (s-1)ⁿ + (-u+1)ⁿ where s = sqrt(2), t = sqrt(2-s), u = sqrt(2+s). A215503

Expansion of ∑_n>=0 (3·n)!/n!³ * x^2·n/(1-3·x)^3·n+1. A208426

Number of base 7 circular n-digit numbers with adjacent digits differing by 1 or less. A124700

a(n) is the integer part of the area of a regular n-gon whose side lengths are n. A374296

Numbers having four 6's in base 9. A43480

Regular coverings having dihedral voltage groups: see Kwak-Lee reference in A160870 for precise definition. A160885

Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and an odd number of ones in each row. A162054

Array read by antidiagonals: T(m,n) = number of m-ary words of length n with cyclically adjacent elements differing by 1 or less. A276562

Denominators of continued fraction convergents to sqrt(573). A42099